Vehicle-mounted wireless charging system

1 . A novel vehicle-mounted wireless charging system, comprising a transmitter, wherein the transmitter comprises:

a transmitting unit, composed of a plurality of transmitting coils,

a full-bridge unit, used for inverting and modulating signals, and composed of two full-bridge modules,

a compensating unit, used for compensating the plurality of transmitting coils and improving a power transmission efficiency, and composed of a plurality of compensating network modules which are each composed of a combination of an inductance and a capacitance;

and

a selecting unit, used for switching connection between selected ones of the plurality of transmitting coils and selected ones of the plurality of compensating network modules, and composed of a plurality of switches;

wherein the vehicle-mounted wireless charging system has a first mode and a second mode,

wherein in the first mode, the two full-bridge modules, two of the plurality of compensating network modules, and the plurality of transmitting coils are selected by switching through the selecting unit such that each full-bridge module is configured to charge different models of mobile phones via respective ones of the plurality of transmitting coils forming a respective EPP quick charging unit and a MPP quick charging unit; and

in the second mode, one full-bridge module of the two full-bridge modules, two groups of the plurality of compensating network modules, and the plurality of transmitting coils are selected by switching through the selecting unit such that the one full-bridge module is configured to charge different models of mobile phones by switching connection to a corresponding group of the plurality of compensating network modules and corresponding coils of the plurality of transmitting coil, to change a compensating network impedance and compensate different transmitting coils, so as to charge different models of mobile phones by selectively forming the EPP quick charging unit or the MPP quick charging unit, wherein the two groups of the plurality of compensating network modules comprises a group of parallel compensating network modules and a group of series compensating network modules.

2 . The novel vehicle-mounted wireless charging system of claim 1 , wherein the plurality of transmitting coils comprise a plurality of EPP coils and an MPP coil;

wherein in the first mode, the one full-bridge module of the two full-bridge modules, one compensating network module of the two compensating network modules, the plurality of switches and the plurality of EPP coils form a proprietary 50 W quick charging unit,

the other full-bridge module of the two full-bridge modules, the other compensating network module of the two compensating network modules and the MPP coil form an MPP 15 W quick charging unit,

and the proprietary 50 W quick charging unit and the MPP 15 W quick charging unit are independent from each other.

3 . The novel vehicle-mounted wireless charging system of claim 1 , wherein the plurality of switches comprise a plurality of first switches, two second switches, and one third switch,

wherein in the first mode, the plurality of first switches are connected in series with the plurality of transmitting coils in one-to-one correspondence,

the third switch is connected with one transmitting coil of the plurality of transmitting coils and the two second switches are connected with the one transmitting coil, and the two second switches correspond to different turns of the one transmitting coil respectively,

wherein the one full-bridge module of the two full-bridge modules, one compensating network module of the two compensating network modules, the plurality of first switches and the plurality of transmitting coils form the EPP quick charging unit, and

the other full-bridge module of the two full-bridge modules, the other compensating network module of the two compensating network modules, the two second switches, the third switch and the one transmitting coil of the transmitting coils form the MPP quick charging unit.

4 . The novel vehicle-mounted wireless charging system of claim 1 , wherein the plurality of switches comprise a plurality of fourth switches, a plurality of fifth switches and a plurality of sixth switches,

wherein in the second mode, the group of parallel compensating network modules and the group of series compensating network modules each comprise a plurality of compensating networks, the plurality of fourth switches are connected in series with the plurality of transmitting coils in one-to-one correspondence, the fifth switches are connected with the group of parallel compensating network modules, the sixth switches are connected with the group of series compensating network modules, the transmitting coils are able to be compatible with EPP mode and MPP mode simultaneously,

wherein when the plurality of fifth switches and the plurality of sixth switches are not closed, the plurality of compensating networks which are not controlled by the plurality of fifth switches and the plurality of sixth switches compensate corresponding coils, the corresponding coils are enabled to charge the mobile phone by selecting corresponding fourth switches of the plurality of fourth switches, such that the EPP quick charging unit is achieved; and

when the plurality of fifth switches and the plurality of sixth switches are closed, the compensating network impedance is changed to compensate corresponding coils, the corresponding coils are enabled to charge the mobile phone by selecting corresponding fourth switches of the fourth switches, such that the MPP quick charging unit is achieved.

5 . The novel vehicle-mounted wireless charging system of claim 1 , wherein the plurality of switches comprise a plurality of seventh switches, a plurality of eighth switches, a plurality of ninth switches, and a plurality of tenth switches, wherein the plurality of transmitting coils comprises a plurality of EPP coils and an MPP coil;

the group of parallel compensating network modules and the group of series compensating network modules each comprise a plurality of compensating networks, the plurality of seventh switches are connected in series with the plurality of EPP coils correspondingly, the plurality of eighth switches are connected in series with the MPP coil correspondingly, the plurality of ninth switches are connected with the group of parallel compensating network modules, the plurality of tenth switches are connected with the group of series compensating network modules,

wherein when the mobile phone is detected to be with EPP protocol, the plurality of seventh switches are selected to make the plurality of EPP coils charge the mobile phone, and when the mobile phone is detected to be with MPP protocol, the plurality of eighth switches are closed to make the MPP coil charge the mobile phone, and simultaneously the plurality of ninth switches and the plurality of tenth switches are controlled to be closed to make the group of parallel compensating network modules and the group of series compensating network modules be used for compensating the MPP coil.

6 . The novel vehicle-mounted wireless charging system of claim 5 , wherein the plurality of EPP coils and the plurality of seventh switches are connected in series in a one-to-one correspondence.

7 . The novel vehicle-mounted wireless charging system of claim 6 , wherein the MPP coil is a magnetically attractable coil and the plurality of EPP coils are each a Qi 1.3 standard coil.

8 . The novel vehicle-mounted wireless charging system of claim 1 , wherein the plurality of switches comprise a plurality of eleventh switches, two twelfth switches, a plurality of thirteenth switches and a plurality of fourteenth switches, wherein the group of parallel compensating network modules and the group of series compensating network modules each comprise a plurality of compensating networks, the plurality of eleventh switches are correspondingly connected in series with the plurality of transmitting coils, the two twelfth switches respectively correspond to different turns of one transmitting coil of the plurality of transmitting coils, the plurality of thirteenth switches are connected with the group of parallel compensating network modules, and the plurality of fourteenth network switches are connected with the group of series compensating network modules,

wherein when the mobile phone is detected to be with EPP protocol, one of the two twelfth switches is closed, and corresponding eleventh switches of the plurality of eleventh switches are selected to make the corresponding transmitting coils charge the mobile phone, and

when the mobile phone is detected to be with MPP protocol, one transmitting coil of the plurality of transmitting coils is closed, the other twelfth switch corresponding to the one transmitting coil is closed, and simultaneously, the plurality of ninth switches and the plurality of tenth switches are controlled to be closed, so that the group of parallel compensating network modules and the group of series compensating network modules are used for compensating corresponding transmitting coils, to make the corresponding transmitting coils charge the mobile phone.